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LaPaz Icefield 10101
Basic information Name: LaPaz Icefield 10101
     This is an OFFICIAL meteorite name.
Abbreviation: LAP 10101
Observed fall: No
Year found: 2010
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 15.4 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 36(2)  (2013)  Howardite
Meteoritical Bulletin:  MB 102  (2013)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 374 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 30 Aug 2013
Writeuphelp
Writeup from AMN 36(2):
Sample Number LAP 10101
Newsletter 36,2
Location LaPaz Icefield
Field Number 22972
Dimensions 3.5 x 2.2 x 1.5
Weight 15.43
Original Classification Howardite
Mineral Composition (%Fa &  %Fs)
Fayalite (mol%): 34-41; Ferrosilite (mol%): 15-56
Weathering
A/B
Fracturing
A/B
Macroscopic Description - Cecilia Satterwhite
The exterior has 15% black fusion crust with oxidation haloes. Exposed interior is gray in color. The interior is light gray matrix with some oxidation. Inclusions of various sizes and color are visible.
Thin Section Description (,2) - Cari Corrigan and Linda Welzenbach
This meteorite is dominated by fine-grained (~100-200 micron average grain size) basaltic material which occurs as both the matrix and larger individual pyroxene clasts within the meteorite. Two composite clasts are present in the section; one appears to be a melt clast with pyroxene grains with reaction rims, and the other looks like a multi-domained pyroxene that may have been recrystallized. Pyroxene compositions range from Fs56Wo1-5, with lamellae of Fs15Wo4, and plagioclase is An64-99Or0-3. Two olivine analyses of Fa34 and Fa41 were obtained. The Fe/Mn ratio of the pyroxene is ~27-35. The meteorite is a howardite.
Antarctic Meteorite Images for Sample LAP 10101
Thin Section Photograph of Sample LAP 10101 in Plane-Polarized Light  Thin Section Photograph of Sample LAP 10101 in Reflected Light  Thin Section Photograph of Sample LAP 10101 in Cross-Polarized Light  Thin Section Photograph of Sample LAP 10101 in Plane-Polarized Light 
Thin Section Photograph of Sample LAP 10101 in Reflected Light  Thin Section Photograph of Sample LAP 10101 in Cross-Polarized Light  North View of Sample LAP 10101 
Data from:
  MB102
  Table 0
  Line 0:
Date:2010
Mass (g):15.4
Pieces:1
Class:Howardite
Weathering grade:A/B
Fayalite (mol%):34-41
Ferrosilite (mol%):15-56
Classifier:SI
Type spec mass (g):15.4
Type spec location:JSC
Main mass:JSC
Finder:ANSMET
Comments:Submitted by AMN
Institutions
   and collections
JSC: Mailcode KT, 2101 NASA Parkway, NASA Johnson Space Center, Houston, TX 77058, United States; Website (institutional address; updated 3 Sep 2013)
SI: Department of Mineral Sciences, NHB-119, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560, United States; Website (institutional address; updated 16 Jan 2012)
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 36(2) (2013), JSC, Houston
Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)

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